April weather forecast
Astoria, SD

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Weather in April

April in Astoria, South Dakota, is a cool spring month, with an average temperature fluctuating between 53.2°F (11.8°C) and 37°F (2.8°C).

Temperature

In Astoria, the onset of April comes with an increased average high-temperature, moving from March's icy 39°F (3.9°C) to a cool 53.2°F (11.8°C). During April, Astoria consistently records a temperature low averaging a cold 37°F (2.8°C).

Humidity

In Astoria, the average relative humidity in April is 68%.

Rainfall

In Astoria, during April, the rain falls for 11.1 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 101.9 rainfall days, and 14.61" (371mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Astoria, in April, during 3.3 snowfall days, 1.34" (34mm) of snow is typically accumulated. In Astoria, during the entire year, snow falls for 49.9 days and aggregates up to 14.02" (356mm) of snow.

Daylight

The average length of the day in April is 13h and 31min.
On the first day of the month, sunrise is at 7:05 am and sunset at 7:54 pm. On the last day of April, sunrise is at 6:16 am and sunset at 8:30 pm CDT.

Sunshine

In April, the average sunshine is 7.8h.

UV index

In Astoria, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 3 during April translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Enhance your sun protection with tightly woven, yet airy clothing. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

What is the average April temperature?

The average high-temperature, in April, in Astoria, is 53.2°F (11.8°C), while the average low-temperature is 37°F (2.8°C).

What is the average humidity in April?

In April, the average relative humidity is 68%.

How much does it rain in Astoria in April?

In Astoria, in April, during 11.1 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

How many days does it snow in April?

In Astoria, during April, snow falls for 3.3 days and regularly aggregates up to 1.34" (34mm) of snow.

What is the average length of the day in April?

The average day length in April is 13h and 31min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 7:05 am and sunset at 7:54 pm. On the last day of the month, in Astoria, sunrise is at 6:16 am and sunset at 8:30 pm CDT.

How many hours of sunshine does Astoria have in April?

In April, the average sunshine duration is 7.8h.

What is the UV index reading in April?

The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Astoria, SD

Average temperature in April - Astoria, SD
  • Average high temperature in April: 53.2°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.5°F).

  • Average low temperature in April: 37°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).

Average pressure in April
Astoria, SD

Average pressure in April - Astoria, SD
  • Average pressure in April: 29.95"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in April
Astoria, SD

Average wind speed in April - Astoria, SD
  • Average wind speed in April: 10.9mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in April
Astoria, SD

Average humidity in April - Astoria, SD
  • Average humidity in April: 68%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).

Average rainfall in April
Astoria, SD

Average rainfall in April - Astoria, SD
  • Average rainfall in April: 1.34"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in April
Astoria, SD

Average rainfall days in April - Astoria, SD
  • Average rainfall days in April: 11.1 days

The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (1.7 days).

Average snowfall in April
Astoria, SD

Average snowfall in April - Astoria, SD
  • Average snowfall in April: 1.34"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Astoria, SD

Average snowfall days in April - Astoria, SD
  • Average snowfall days in April: 3.3 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Astoria, SD

Average daylight in April / Average sunshine in April - Astoria, SD
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in April: 7h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in April
Astoria, SD

Average sunshine days in April - Astoria, SD
  • Average sunshine days in April: 15.3 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in April
Astoria, SD

Average UV index in April - Astoria, SD
  • Average UV index in April: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and November (UV index 1).

Average cloud cover in April
Astoria, SD

Average cloud cover in April - Astoria, SD
  • Average cloud cover in April: 46

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in April
Astoria, SD

Average visibility in April - Astoria, SD
  • Average visibility in April: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Astoria, South Dakota, USA

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